GR890100247A - Method and apparatus for installing a riplacement pipe in an existing underground conduit - Google Patents

Method and apparatus for installing a riplacement pipe in an existing underground conduit

Info

Publication number
GR890100247A
GR890100247A GR89100247A GR890100247A GR890100247A GR 890100247 A GR890100247 A GR 890100247A GR 89100247 A GR89100247 A GR 89100247A GR 890100247 A GR890100247 A GR 890100247A GR 890100247 A GR890100247 A GR 890100247A
Authority
GR
Greece
Prior art keywords
pipe
anterior end
round
new pipe
expanded
Prior art date
Application number
GR89100247A
Other languages
Greek (el)
Other versions
GR1000704B (en
Inventor
Campbell H Steketee
Original Assignee
Nu Pipe
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nu Pipe filed Critical Nu Pipe
Publication of GR890100247A publication Critical patent/GR890100247A/en
Publication of GR1000704B publication Critical patent/GR1000704B/en

Links

Abstract

An essentially rigid thermoplastic pipe, produced in flat and folded forms, having the property of reverting to its original round form upon heating and stored in this flat state. Prior to installation and positioning within existing pipes, these are heated and rendered flexible. A new pipe is made round by the introduction of liquid, heated to specifications allowing conveyance throughout the length of curves, while sealing its anterior end. This anterior end can be sealed with an end collar clamp, or expanded plug, serving to allow conveyance of hot liquid completely within the pipe, thereby heating its entire length. Alternately, the expanded plug can be pushed to the anterior end of the new pipe after its placement and subsequently, be completely expanded to seal the end, thereby helping to make it round and extending the remaining part of the new pipe.
GR890100247A 1989-04-13 1989-04-13 Method and apparatus for installing a riplacement pipe in an existing underground conduit GR1000704B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR89100247 1989-04-13

Publications (2)

Publication Number Publication Date
GR890100247A true GR890100247A (en) 1991-09-27
GR1000704B GR1000704B (en) 1992-10-08

Family

ID=10939384

Family Applications (1)

Application Number Title Priority Date Filing Date
GR890100247A GR1000704B (en) 1989-04-13 1989-04-13 Method and apparatus for installing a riplacement pipe in an existing underground conduit

Country Status (1)

Country Link
GR (1) GR1000704B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0065886A1 (en) * 1981-04-13 1982-12-01 Jacques Laurent Method of lining a passageway and tube for carrying it out
GB2188695A (en) * 1986-03-31 1987-10-07 Jr Campbell Hall Steketee Lining pipes
GB2208311A (en) * 1987-07-28 1989-03-22 Jr Campbell H Steketee Lining pipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0065886A1 (en) * 1981-04-13 1982-12-01 Jacques Laurent Method of lining a passageway and tube for carrying it out
GB2188695A (en) * 1986-03-31 1987-10-07 Jr Campbell Hall Steketee Lining pipes
GB2208311A (en) * 1987-07-28 1989-03-22 Jr Campbell H Steketee Lining pipe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CLAIMS SEARCHED: ALL *

Also Published As

Publication number Publication date
GR1000704B (en) 1992-10-08

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